BS EN 14825:2012 pdf free

BS EN 14825:2012 pdf free.Air conditioners, liquid chilling packages and heat pumps, with electrically driven compressors, for space heating and cooling – Testing and rating at part load conditions and calculation of seasonal performance.
BS EN 14825 gives the calculation methods for the determination of reference seasonal energy efficiency SEER and SEERO., and reference seasonal coefficient of performance SCOP, SCOP0, and SCOPfld.
Such calculation methods may be based on calculated or measured values.
In case of measured values, this European Standard covers the test methods for determination of capacities. EER and COP values during active mode at part load conditions. It also covers test methods for electric power consumption during thermostat off mode, standby mode and crankcase heater mode.
This European Standard serves as an input for the calculation of the system energy efficiency in heating mode of specific heat pump systems in buildings, as stipulated in the standard EN 15316-4-2.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 14511-1:2011, Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling — Part 1: Terms and definitions
EN 14511 -2, Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling — Part 2: Test conditions
EN 14511-3:2011, Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling — Part 3: Test methods
3 Terms, definitions, symbols, abbreviated terms and units
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 14511-1:2011 (unless otherwise stated) and the following apply.
3.1.1 reference design conditions for cooling Tdesignc
temperature conditions at 35 °C dry bulb (24 °C wet bulb) outdoor temperature and 27 °C dry bulb (19 °C wet bulb) indoor temperature
3.1.2 reference design conditions for heating Tdesignh
temperature conditions for average, colder and warmer climates
4 Part load conditions in cooling mode
4.1 General
For the purpose of calculation of application SEER and reference SEER / SEERQ as explained in Clause 6,the part load ratios mentioned below shall be based on the part load ratio formulas (1st column of Tables 2 to 5) and not on the rounded figures as mentioned in the 2’ column of these tables.BS EN 14825 pdf free download.